MkDocs static i18n plugin

The `mkdocs-static-i18n` plugin allows you to support multiple languages for your documentation by adding static translation files to your existing documentation pages. It generates a default version of your website plus one version per configured language on its corresponding `/language/` path, and supports localized images, media, and assets. The current version is 1.3.1. While widely used, the project maintainer has stated it is "frozen as-is" due to upstream MkDocs maintenance uncertainty, suggesting a maintenance-only cadence without new feature development.